diff --git a/requirements.txt b/requirements.txt
index 00cf832..0264f54 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-attrs==19.3.0
+attrs==23.2.0
 mock==4.0.2
 more-itertools==8.3.0
 numpy==1.22.0